用Java写代码：某炸鸡快餐推出一个吉士汉堡套餐CheeseBurgerComboMeal：它由吉士汉堡CheeseBurger+可乐Cola+薯条FrenchFries组成，其中： 吉士汉堡有size(尺寸);price属性； 可乐有volume(容量);price属性； 薯条有type（large, medium, small）和price属性。 CheeseBurgerComboMeal本身也有一个价格属性。 所有数据访问属性均为private。为此需要公开get方法。 CheeseBurgerComboMeal中有一个showMessage方法。 在主函数中，测试创建CheeseBurgerComboMeal对象（先创建吉士汉堡、可乐、薯条对象，并传入CheeseBurgerComboMeal构造方法）并调用CheeseBurgerComboMeal的showMessage输出： 欢迎选用吉士汉堡套餐： 吉士汉堡：5寸；单价15元； 可乐：500ML， 单价8元； 薯条：large，单价8元； 套餐优惠价：22元，为您节省：9元。用5个窗口写

窗口1： CheeseBurger 类

public class CheeseBurger {
    private int size;
    private double price;

    public CheeseBurger(int size, double price) {
        this.size = size;
        this.price = price;
    }

    public int getSize() {
        return size;
    }

    public double getPrice() {
        return price;
    }
}

窗口2： Cola 类

public class Cola {
    private int volume;
    private double price;

    public Cola(int volume, double price) {
        this.volume = volume;
        this.price = price;
    }

    public int getVolume() {
        return volume;
    }

    public double getPrice() {
        return price;
    }
}

窗口3： FrenchFries 类

public class FrenchFries {
    private String type;
    private double price;

    public FrenchFries(String type, double price) {
        this.type = type;
        this.price = price;
    }

    public String getType() {
        return type;
    }

    public double getPrice() {
        return price;
    }
}

窗口4： CheeseBurgerComboMeal 类

public class CheeseBurgerComboMeal {
    private CheeseBurger cheeseBurger;
    private Cola cola;
    private FrenchFries frenchFries;
    private double price;

    public CheeseBurgerComboMeal(CheeseBurger cheeseBurger, Cola cola, FrenchFries frenchFries) {
        this.cheeseBurger = cheeseBurger;
        this.cola = cola;
        this.frenchFries = frenchFries;
        this.price = cheeseBurger.getPrice() + cola.getPrice() + frenchFries.getPrice() - 9.0;
    }

    public double getPrice() {
        return price;
    }

    public void showMessage() {
        System.out.println("欢迎选用吉士汉堡套餐：");
        System.out.println("吉士汉堡：" + cheeseBurger.getSize() + "寸；单价" + cheeseBurger.getPrice() + "元；");
        System.out.println("可乐：" + cola.getVolume() + "ML， 单价" + cola.getPrice() + "元；");
        System.out.println("薯条：" + frenchFries.getType() + "，单价" + frenchFries.getPrice() + "元；");
        System.out.println("套餐优惠价：" + price + "元，为您节省：9元。");
    }
}

窗口5：主函数

public class Main {
    public static void main(String[] args) {
        CheeseBurger cheeseBurger = new CheeseBurger(5, 15.0);
        Cola cola = new Cola(500, 8.0);
        FrenchFries frenchFries = new FrenchFries("large", 8.0);

        CheeseBurgerComboMeal cheeseBurgerComboMeal = new CheeseBurgerComboMeal(cheeseBurger, cola, frenchFries);
        cheeseBurgerComboMeal.showMessage();
    }
}